Guys, much more likely it is a false-positive.
It is a common problem with new games including those made using the GameMaker engine (which is the game’s engine). Here is an article describing that from GameMaker developers. And here and here are discussions on Reddit about it.
Basically antivirus software is constantly evolving to keep up with different malicious software being made and to be extra careful antivirus providers treat anything even remotely resembling a new virus as an actual virus before they are able to detect it better. And the reason you do not constantly get warnings for every piece of software you use as new viruses pop-up is because software developers get certificated to be trusted by antivirus providers.
I downloaded the last version (0.1.9.5) of the game in a few hours as it has been released and had no warnings about it and the file did not change since then. So, unless Hummer is a genius hacker, who developed a new virus never seen before by any of the antivirus providers and put it into the game before it was known about that virus, it is very improbable for the game to have a virus in it.